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Error code reference

LG Washer Error Code 12

Power failure

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What the 12 error code actually means

Error code 12 means your LG washer lost power while it was running, and it recorded that interruption when power came back on. This is usually caused by a brief power outage, a tripped breaker, or a loose plug, not a broken part. Restoring power and restarting the washer is typically all that is needed.

Diagnostic procedure

The full 12 procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Restore power; the washer should resume or allow restart.
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Most common causes of 12

Ranked by how often they cause this code
  1. 1Utility power outage or voltage interruption
  2. 2Tripped circuit breaker
  3. 3Loose or faulty wall outlet connection
  4. 4Damaged or loose power cord
  5. 5Shared circuit with high-draw appliances

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Questions people ask about 12

What does 12 mean on a LG washer?
Error code 12 on an LG washer means the machine experienced a power failure while it was running a cycle. The control board detected that power was interrupted and logged the event. It does not indicate a broken internal component. Restoring stable power and restarting the washer is typically sufficient to clear it.
Will resetting my LG washer clear error code 12?
Yes, in most cases the error clears once power is restored and the washer is restarted. You can perform a basic reset by unplugging the washer for about 30 seconds and then plugging it back in. If the underlying cause was a one-time power interruption, the error should not return after the reset.
How much does it cost to fix error code 12 on an LG washer?
If the cause is a tripped breaker or a loose outlet connection, there is no parts cost involved. If the power cord needs replacement, cord replacements typically range from around $15 to $50 depending on the model. If an electrician is needed to assess or repair the wall outlet or circuit, service call fees can range from $75 to $200 or more depending on the scope of work.
How do I fix error code 12 on my LG washer?
Start by confirming that power has been fully restored to the machine and that the circuit breaker has not tripped. Firmly reseat the power cord in the wall outlet, then attempt to restart the washer. If the error keeps returning without any obvious outage, check the outlet voltage and confirm the washer is on a properly rated circuit.
Is error code 12 on an LG washer a safety concern?
Error code 12 itself is not a safety hazard. It simply records that power was lost during a cycle. However, if the code is caused by a damaged power cord, a failing outlet, or repeated breaker trips, those underlying electrical issues should be addressed promptly to prevent potential shock or fire hazards.

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